Results, personalized for you


Take your training to the next level with our 1-on-1 sessions.

Quality training experience extends beyond education. It’s the passion to inspire, the ability to motivate. It’s a desire to take on their clients’ goals as their own. That’s what you’ll get with a GRITLABS trainer. This is our promise to you.

1-on-1 Personal Training is the most effective way to get results faster. You’ll get the undivided attention of a professional so you can conquer your fitness journey. You’ll work with the ultimate partner on your journey.

1-on-1 Personal Training gives you exclusive access to 500 sqft of space with dedicated equipment, which you do not share with anyone else during your personal training.



We get to know you

We believe in the power of getting you set up with the right Personal Trainer – the best possible one for you. That starts with truly understanding you. We take a human approach to learning more about you, so when you sign up for GRITLABS, you’ll be chatting with a dedicated member of our team. Not filling in some online questionnaire.

We put together a tailored plan for you

To achieve results faster, you’ll have to train the right way. Exercise is random. Training is methodical. It’s grounded in science. We’ll set you up with a customized training plan and the correct nutritional principles based on your body and your goals. Because we don’t believe in a one-size-fits-all approach. And neither should you.

We put you to work

We’ll help you embrace the process and enjoy your fitness journey. Those workouts you once dreaded, you’ll begin to love. That confusion and uncertainty you had about exercise… That will be gone. You’ll finally get to know what progress feels like. And you’ll love it.

Book Your Discovery Session with No Obligation

Get in touch with us to find out more about 1-on-1 services


Casey Marjerrison

Personal Trainer & Nutrition Coach

The grass is greener where you water it” – Neil Barringham

I’m truly a believer that life is what we make it. We make our own paths with our actions and I’m here to give you the tools to make your life what you want. I got into personal training because I love to see people living empowered lives. The food we eat, the people we surround ourselves with, how we spend our time, all these things and more shape our wellness. My goal is to work with you to create custom personal programs and experiences for you to meet your goals and live your best life. 

My training and certifications incorporate nutrition, functional movement, strength and conditioning, and stress management. I use in person sessions, virtual sessions, recorded videos, and information packages to develop individualized programs to get you results and help you build your own toolbox of skills and knowledge. 


  • Certified ISSA Personal trainer
  • ISSA certified Glute Specialist
  • Level 1 Nutrition Coach through Precision Nutrition
  • Masters in Physics
  • Standard First Aid/CPR

Rachel Dudik

Certified Fitness Instructor

Rachel is a certified fitness instructor, healthy eating and weight loss coach and personal trainer. She has a Bachelors degree in Kinesiology from Western University. She loves helping people reach their fitness goals showing them what they are capable of. In addition to being a coach, instructor and trainer, Rachel is also a physiotherapist assistant. Her experience in the rehab setting is carried over in her fitness career by ensuring proper form, recovery and injury prevention. As your coach, Rachel will be there with you every step of the way to make your fitness journey an enjoyable one.


  • Bachelors Degree in Kinesiology
  • Certified Fitness Instructor
  • Certified Healthy Eating & Weight Loss Coach
  • First Aid/CPR certified